| 发动机叶片无损检测的可靠性 |
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| 引用本文： | 刘登第,傅惠民.发动机叶片无损检测的可靠性[J].航空动力学报,1999,14(3):301-304. |
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| 作者姓名： | 刘登第 傅惠民 |
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| 作者单位： | 北京航空航天大学 |
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| 摘 要： | 提出了一种发动机叶片无损检测可靠性分析方法，利用该方法可以有效地提高叶片中裂纹（缺陷）的检出概率（ＰＯＤ），并能对裂纹的漏检概率（ＰＯＭ）进行准确地评估和控制，使因叶片裂纹漏检而引起发动机故障的可能性降至最低程度，从而确保发动机的安全运行；该方法简单方便，易于工程实施和应用。
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| 关 键 词： | 航空发动机 叶片 无损检验 缺陷 可靠性 |
| 收稿时间： | 3/1/1999 12:00:00 AM |
| 修稿时间： | 5/1/1999 12:00:00 AM |
RELIABILITY OF ENGINE BLADE NONDESTRUCTIVE TESTING |
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| Liu Dengdi and Fu Huimin.RELIABILITY OF ENGINE BLADE NONDESTRUCTIVE TESTING[J].Journal of Aerospace Power,1999,14(3):301-304. |
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| Authors: | Liu Dengdi and Fu Huimin |
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| Affiliation: | 5th Dept.Beijing University of Aeronautics and Astronautics, Beijing 100083;5th Dept.Beijing University of Aeronautics and Astronautics, Beijing 100083 |
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| Abstract: | The attention has focused on quantifying the capability of nondestructive testing (NDT) system for guaranteeing structural safety through damage tolerance analysis.A method of reliability assessment for engine blades NDT is presented,which can determine exactly the probability of flaw detection(POD)and assess the probability of flaws missed(POM)in the engine blades,as well as control the largest size of the flaws missed at inspections with high probability of flaw detection and confidence level.This method also raises the flaw detection probability and prevents the flight accidents caused by the missed flaws in engine blades. |
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| Keywords: | Aircraft engine Blades Nondestructive tests Flaw Reliability |
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